This is an AeroTech 29mm F26-9F SU Rocket Motor, and is intended for use in 29mm Composite Motor Rockets. AeroTech established its position as the leader in hobby rocket motor technology with its single-use composite motors. Hobby rocketry has come to depend on AeroTech single-use motors for sport and competition flying. All AeroTech single-use rocket motors have been certified by the National Association of Rocketry (NAR) or the Tripoli Rocketry Association (TRA).